* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  outline: none;
  border: none;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
}

@media only screen and (min-width: 769px) {
  html, body {
    margin: auto;
    width: 64%;
  }
}

button {
  cursor: pointer;
}

a {
  text-decoration: none;
}

// a {
//   position: relative;
//   text-decoration: none;
//   color: #3F51B5;
//   cursor: pointer;
// }
//
// a::after {
//   content: "";
//   position: absolute;
//   left: 0;
//   bottom: 0;
//   width: 100%;
//   height: 2px;
//   background-color: #3F51B5;
//   transform: scaleX(0);
//   transition: .3s ease-in-out;
// }
//
// a:hover::after {
//   transform: scaleX(1);
//   transition: .3s ease-in-out;
// }

i {
  cursor: pointer;
  display: inline-block;
  width: 30px;
  height: 30px;
}

li {
  list-style: none;
}

.clearfix:before,
.clearfix:after {
    display: table;
    content: " ";
}
.clearfix:after {
    clear: both;
}
.clearfix{
    *zoom: 1;
}

.user_join {
  width: 200px;
  margin: 3px auto;
  border-radius: 4px;
  text-align: center;
  background-color: #ECEFF1;
  color: gray;
  font-size: 50%;
}

.slide-bottom-enter-active {
  transition: all .3s ease;
}
.slide-bottom-leave-active {
  transition: all .2s ease;
}
.slide-bottom-enter, .slide-bottom-leave-active {
  transform: translateX(-130px);
  opacity: 0;
}

.slide-top-enter-active {
  transition: all .5s ease-out;
}
.slide-top-leave-active {
  transition: all 0 ease;
}
.slide-top-enter, .slide-top-leave-active {
  transform: translateY(-450px);
  opacity: 0;
}

.slide-left-enter-active {
  transition: all .4s ease;
}
.slide-left-leave-active {
  transition: all .0 ease;
}
.slide-left-enter, .slide-left-left-active {
  transform: translateX(-375px);
  opacity: 0;
}

.slide-right-enter-active {
  transition: all .4s ease;
}
.slide-right-leave-active {
  transition: all .0 ease;
}
.slide-right-enter, .slide-right-active {
  transform: translateX(375px);
  opacity: 0;
}

.showAbout-enter-active {
  transition: all .4s ease-in-out;
}
.showAbout-leave-active {
  transition: all .3s cubic-bezier(1.0, 0.5, 0.8, 1.0);
}
.showAbout-enter, .showAbout-leave-active {
  transform: rotateZ(180deg);
  opacity: 0;
}
